49023945 has 12 divisors (see below), whose sum is σ = 84974916. Its totient is φ = 26146080.

The previous prime is 49023941. The next prime is 49023973. The reversal of 49023945 is 54932094.

49023945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11532816 + 37491129 = 3396^2 + 6123^2 .

It is not a de Polignac number, because 49023945 - 2² = 49023941 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (49023941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 544666 + ... + 544755.

It is an arithmetic number, because the mean of its divisors is an integer number (7081243).

Almost surely, 2^49023945 is an apocalyptic number.

49023945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49023945 is a deficient number, since it is larger than the sum of its proper divisors (35950971).

49023945 is a wasteful number, since it uses less digits than its factorization.

49023945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089432 (or 1089429 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 49023945 is about 7001.7101482424. The cubic root of 49023945 is about 365.9901681494.

The spelling of 49023945 in words is "forty-nine million, twenty-three thousand, nine hundred forty-five".